.contain{
	width: 100%;
	height: 720px;
	margin-left: auto;
	margin-right: auto;
	font-size:18px;
	font-family: "微软雅黑"; 
}
.JD-hydl{
    width: 1440px;
    height: 80px;
    position: relative;
    background-color: white;
}
.JD-hydl .jd{
	margin-left:230px;
	width: 160px;
	height: 80px;
	padding: 10px 0px;
}
.JD-hydl .hydl{
	position: absolute;
	top: 0px;
	margin-left: 410px;
	padding: 10px 0px;
}
.JD-hydl .tubiao{
	position: absolute;
	top: 55px;
	margin-left:1080px;
}
.JD-hydl .wjdc{
	position: absolute;
	top:45px ;
	margin-left:1110px ;
	font-size: 12px;
	color:rgba(0,0,0,0.5);
}
.center {
	width: 1440px;
	height: 475px;
}
.down-nav{
	position:absolute ;
	top: 555px;
	width: 1440px;
	height: 170px;
	line-height:170px;
	background-color:white;
}
a {
	text-decoration: none;
	color:rgba(0,0,0,0.5);
}
.down-nav ul{
	margin: 0px;
	padding: 0px;
	list-style: none;
}
.down-nav ul li{
	float: left;
	padding: 0px 16px;
	font-size: 12px;
	color:rgba(0,0,0,0.5);
	}
.bottom{
	width:1440px ;
    height: inherit;
	font-size: 12px;
	color:rgba(0,0,0,0.5);
    text-align: center;
}
